That something unexpected was a tumor the size of a grapefruit in his chest.
But the reasoning only made sense if the tumor grew in a linear, predictable way.
I had a scan at 7:30 in the morning, and it clearly showed a tumor on my pancreas.
tumor tu·mor (tōō'mər, tyōō'-)
An abnormal growth of tissue resulting from uncontrolled, progressive multiplication of cells and serving no physiological function; a neoplasm.
A swollen part; a swelling.
The stomach: eliminating the protruding tummy
[1869+; fr a childish pronunciation of stomach]